W. R. Berkley Corporation (MACI) discloses 8.3% ownership of Melar Acquisition Class A shares

Rhea-AI Filing Summary

W. R. Berkley Corporation, through subsidiary Berkley Insurance Company, reports beneficial ownership of Class A ordinary shares of Melar Acquisition Corp. I. The filing states ownership of 795,916 Class A shares, representing 8.3% of the outstanding class.

The reporting persons have shared voting and shared dispositive power over all 795,916 shares, with no sole voting or dispositive power reported. The disclosure is filed as Amendment No. 1 to a Schedule 13G.

Key Figures

Beneficial ownership: 795,916 shares Percent of class: 8.3% Shared voting power: 795,916 shares +2 more

5 metrics

Beneficial ownership 795,916 shares Class A ordinary shares of Melar Acquisition Corp. I reported as beneficially owned

Percent of class 8.3% Percentage of MACI Class A ordinary shares beneficially owned by W. R. Berkley Corporation

Shared voting power 795,916 shares Shares over which W. R. Berkley Corporation has shared voting power

Shared dispositive power 795,916 shares Shares over which W. R. Berkley Corporation has shared dispositive power

Par value $0.0001 per share Par value of MACI Class A ordinary shares reported in the ownership filing

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 795,916"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared Voting Power 795,916.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 795,916.00"

parent holding company regulatory

"If a parent holding company has filed this schedule, pursuant to (ii)(G)"

Schedule 13G regulatory

"If a parent holding company has filed this schedule, pursuant to (ii)(G)"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

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Available on EDGAR 08/06/2026 - 04:44 PM Accepted by SEC EDGAR 08/06/2026 - 04:43 PM Learn about SEC filing dates

FAQ

What percentage of Melar Acquisition Corp. I (MACI) does W. R. Berkley Corporation report owning?

W. R. Berkley Corporation reports beneficial ownership of 8.3% of Melar Acquisition Corp. I’s Class A ordinary shares. This 8.3% interest is based on 795,916 shares over which it has shared voting and dispositive power.

How many MACI Class A shares does W. R. Berkley Corporation beneficially own?

W. R. Berkley Corporation reports beneficial ownership of 795,916 MACI Class A ordinary shares. All of these shares are held with shared voting and shared dispositive power, and none are held with sole voting or dispositive authority.

Which entities are listed as reporting persons in the MACI Schedule 13G/A?

The reporting persons are W. R. Berkley Corporation and its subsidiary Berkley Insurance Company. Both entities report identical positions: 795,916 MACI Class A shares with shared voting and shared dispositive power and no sole authority reported.

What type of security in MACI is covered by this Schedule 13G/A filing?

The filing covers Class A ordinary shares of Melar Acquisition Corp. I with a par value of $0.0001 per share. These are the equity securities for which beneficial ownership of 795,916 shares, or 8.3% of the class, is reported.

Does W. R. Berkley Corporation report sole or shared voting power over MACI shares?

W. R. Berkley Corporation reports 0 shares with sole voting power and 795,916 shares with shared voting power. It likewise reports no sole dispositive power and shared dispositive power over 795,916 shares of MACI Class A stock.

What is Berkley Insurance Company’s role in the MACI share ownership reported?

Berkley Insurance Company, a Delaware entity, is identified as the subsidiary that holds the MACI shares. It reports 795,916 shares of MACI Class A stock with shared voting and dispositive power, mirroring W. R. Berkley Corporation’s reported ownership.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Melar Acquisition Corp. I

(Name of Issuer)

Class A ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP No.

1

Names of Reporting Persons

W. R. Berkley Corporation

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 795,916.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 795,916.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

795,916.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.3 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP No.

1

Names of Reporting Persons

Berkley Insurance Company

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 795,916.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 795,916.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

795,916.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.3 %

12

Type of Reporting Person (See Instructions)

CO, IC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Melar Acquisition Corp. I
(b)	Address of issuer's principal executive offices: 143 West 72nd Street, 4th Floor, New York, New York, 10023
Item 2.
(a)	Name of person filing: W. R. Berkley Corporation
(b)	Address or principal business office or, if none, residence: 475 Steamboat Road Greenwich, CT 06830
(c)	Citizenship: US
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001 per share
(e)	CUSIP No.:
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 795,916
(b)	Percent of class: 8.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 795,916
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 795,916
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99.1
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

W. R. Berkley Corporation

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Chief Financial Officer
Date:	08/05/2026

Berkley Insurance Company

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Treasurer
Date:	08/05/2026